muscular band of Treitz. The German anatomists at the Basel conference lately proposed a uniform Latin and Greek nomenclature, which, though not altogether satisfactory, is gaining ground on the European continent. As there are some four hundred transverse wrinkles in the forehead. The anterior, posterior and superior auricular muscles are present but are almost functionless in man. The orbicular is palpebrarum forms a sphincter round the eyelids, which it closes, though there is little doubt that parts of the muscle can act separately and cause various expressions. The side of

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Epicranial aponeurosis A-rroumxs Avuzu Occn>rrAus RETRAHENS mmm Tnumazrus / g ff AUREM -" Fnoumus 24 ORBICULARIS PALPEBRARUM f" PYRAMIDALIS NAS! svranxonxs ALAEQUE NAsr an surmuonrs Zvcounrrcvs muon NARIS LA AI-AE NAS] MAJOR Stenson's duct RIS ORIS

Rrsomus DEPRESSOR ANGULI olus DEPRESSOR Luau mrnnxoms

MASSETER

Pmnsun momas From A. M. Paterson, Cunninghanfs Text Book of Anatomy. FIG. 2.-The Muscles of the Face and Scalp (muscles of expression). muscles on each side of the body it will be impossible here to attempt more than a mere sketch of them; for the details the anatomical textbooks must be consulted. Muscuss or THE HEAD AND FACE (see fig. 2).-1-The scalp is moved by a large Hat muscle called the occipito-frontal is, which has two muscular bellies, the occipital is and frontal is, and an intervening epicranial aponeurosis; this muscle moves the scalp and causes the the nose has several muscles, the actions of which are indicated by their names; they are the compressor, two dilator es and the depressor alae nasi, while the levator labii superiaris et alae nasi sometimes goes to the nose. Raising the upper lip, in addition to the last named, 'are the levator labii superior is proprius and the levator anguli oris, while the zy omaticus major draws the angle of the mouth outward. The lower iip is depressed by the depressor labii inferior is and depressor cmguli oris, while the orbicular is 'oris acts as a sphincter to the mouth. Epicranial aponeurosis T1-:|n>ouL uuscf Auriculo-temporal ner Superficial temporal artcry Extemal carotid an" Internal lateral Posterior auricular Lingual Mylo-hyoid Q- i Parotid gland ' /Z buccal nerve Temporal branches of ) mferior maxillary nerve Temporal branch of g l EXTERNAL Pranycom dental artery dental nerve buccal nerv ibula: Mental branch of inferior dental nerve Inferior dental nerve MAssE'rx-:R (cut) Fmm A- M. Paterson, Cunningham's Tex: Baal: of Anatomy.

FIG. 3.—Pterygoid Region.